Demountable rim pulley



Feb. 19, 1924. 11,484,593

J. WALTERS DEMOUNTABLE RIM PULLEY Filed Aug. 10. 1922 attoz wag Patented Feb. l$, lQZ-l.

lMMTED STATEfi PATENT QWWGEO JAMES WALTERS, OF BIRMINGHAM, ALUAII'IA- DEMOUNTABLE RIM PULLEY.

T all whom it may concern:

Be it known that 1, James WALTERS, a citizen of the United States of America, residing at Birmingham, in the county of J etierson and State of Alabama, have invented new and useful Improvements in Demountable Rim Pulleys, of which the following is a specification.

The object of the invention is to provide a simple and efficient means whereby a rim pulley may be employed to the driving wheel of a motor-driven vehicle for use in actuating a belt. for driving machinery such as saw mills, teed cutters and the like 5. and

" with this object in view the invention consists in a construction and combination of parts of which a preferred embodiment. is shown in the accompanying drawings, wherein Figure 1 is a side view of a demountable rim pulley arranged in the operative position on the drive wheel of a vehicle and traversed by adriving belt for actuating a circular saw mechanism.

Figure 2 is an enlarged detail transverse sectional view of the rim pulley applied to a wheel.

Figure 3 is a similar view of a portion of the pulley detached from the wheel.

The pulley consists of a ring having an outer peripheral surface which is preferably grooved transversely as indicated at 11 to provide an effective frictional engagement with a driving belt 12 adapted for actuating suitable machinery such as the circular saw mechanism indicated at 13, said belt bet-ween the drive pulley and the machine being arranged to traverse suitable guide or direction pulleys 14 which may be adapted by any suitable means to maintain a proper tension of the belt.

lnteriorly the ring forming the rim is provided with parallel major and minor ribs 15 and 16 formed by thickening the ring between its side edges and thereby serving to reinforce or strengthen the rim, the major rib projecting inwardly to a greater extent than the minor rib so that when the rim is fitted on the rim 17 of a driving wheel such as those employed on motor cars and the like by sliding the same into the position indicated in Figure 2, the minor rib abuts the inner flange of the tire rim and the major rib comes in contact with the outer edge of Application filed August 10, 1922. Serial Ho. 580,880.

the tire rim and the portion of the inner surface of the ring between the ribs constitutes a seat 18 bearing on the central portion of the wheel rim to hold the ring in position against displacement while in operation to drive the belt. Obviously in the use of the invention the demountable rim and its attached tire are removed and replaced with the ring provided with the peripheral pulley surface.

Having described the invention, what is claimed as new and useful is 1. The combination with a tire supporting rim of a wheel, said rim having opposite annular shoulders, of a demountable pulley rim provided with an outer broad periphery provided with transverse grooves to effecttrictional engagement with a driving belt, said pulley rim consisting of a continuous band provided with parallel annular interior major and minor ribs, said pulley rim being centrally thickened between the ribs constituting a wheel rim engaging seat bound by said interior annular parallel major and minor ribs which are offset sul stantially inwardly from the opposite edges of the pulley rim, the major rib extending radially inwardly, the minor rib oil'set outwardly, both ribs adapted to abut said annular shoulders of the tire supporting rim, thereby acting to limit the telescopical insertion of the pulley rim on the tire support ing rim.

2. i-is an article of manufacture, a demountable rim pulley embodying a continuous rim having a relatively broad outer periphery provided with transverse grooves to effect frictional engagement with a driving belt, the inner surface of said rim be ing provided with parallel annular major and minor ribs offset substantially inwardly from opposite edges of the rim pulley and adapted for engagement with annular shoulders of a. tire supporting rim of a wheel, the body of said continuous rim between said major and minor ribs being thickened, thereby providing a continuous internal annular seat intervening and being bound by the parallel ribs and adapted to telescope the outer periphery of the tire supporting rim.

In testimony whereof he aflixes his signature.

JAMES WALTERS. 

